xref: /linux/drivers/media/i2c/adv7180.c (revision 6fd600d742744dc7ef7fc65ca26daa2b1163158a)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * adv7180.c Analog Devices ADV7180 video decoder driver
4  * Copyright (c) 2009 Intel Corporation
5  * Copyright (C) 2013 Cogent Embedded, Inc.
6  * Copyright (C) 2013 Renesas Solutions Corp.
7  */
8 #include <linux/mod_devicetable.h>
9 #include <linux/module.h>
10 #include <linux/init.h>
11 #include <linux/errno.h>
12 #include <linux/kernel.h>
13 #include <linux/interrupt.h>
14 #include <linux/i2c.h>
15 #include <linux/slab.h>
16 #include <linux/of.h>
17 #include <linux/gpio/consumer.h>
18 #include <linux/videodev2.h>
19 #include <media/v4l2-ioctl.h>
20 #include <media/v4l2-event.h>
21 #include <media/v4l2-device.h>
22 #include <media/v4l2-ctrls.h>
23 #include <linux/mutex.h>
24 #include <linux/delay.h>
25 
26 #define ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM		0x0
27 #define ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM_PED		0x1
28 #define ADV7180_STD_AD_PAL_N_NTSC_J_SECAM		0x2
29 #define ADV7180_STD_AD_PAL_N_NTSC_M_SECAM		0x3
30 #define ADV7180_STD_NTSC_J				0x4
31 #define ADV7180_STD_NTSC_M				0x5
32 #define ADV7180_STD_PAL60				0x6
33 #define ADV7180_STD_NTSC_443				0x7
34 #define ADV7180_STD_PAL_BG				0x8
35 #define ADV7180_STD_PAL_N				0x9
36 #define ADV7180_STD_PAL_M				0xa
37 #define ADV7180_STD_PAL_M_PED				0xb
38 #define ADV7180_STD_PAL_COMB_N				0xc
39 #define ADV7180_STD_PAL_COMB_N_PED			0xd
40 #define ADV7180_STD_PAL_SECAM				0xe
41 #define ADV7180_STD_PAL_SECAM_PED			0xf
42 
43 #define ADV7180_REG_INPUT_CONTROL			0x0000
44 #define ADV7180_INPUT_CONTROL_INSEL_MASK		0x0f
45 
46 #define ADV7182_REG_INPUT_VIDSEL			0x0002
47 #define ADV7182_REG_INPUT_RESERVED			BIT(2)
48 
49 #define ADV7180_REG_OUTPUT_CONTROL			0x0003
50 #define ADV7180_REG_EXTENDED_OUTPUT_CONTROL		0x0004
51 #define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS		0xC5
52 
53 #define ADV7180_REG_AUTODETECT_ENABLE			0x0007
54 #define ADV7180_AUTODETECT_DEFAULT			0x7f
55 /* Contrast */
56 #define ADV7180_REG_CON		0x0008	/*Unsigned */
57 #define ADV7180_CON_MIN		0
58 #define ADV7180_CON_DEF		128
59 #define ADV7180_CON_MAX		255
60 /* Brightness*/
61 #define ADV7180_REG_BRI		0x000a	/*Signed */
62 #define ADV7180_BRI_MIN		-128
63 #define ADV7180_BRI_DEF		0
64 #define ADV7180_BRI_MAX		127
65 /* Hue */
66 #define ADV7180_REG_HUE		0x000b	/*Signed, inverted */
67 #define ADV7180_HUE_MIN		-127
68 #define ADV7180_HUE_DEF		0
69 #define ADV7180_HUE_MAX		128
70 
71 #define ADV7180_REG_DEF_VALUE_Y	0x000c
72 #define ADV7180_DEF_VAL_EN		0x1
73 #define ADV7180_DEF_VAL_AUTO_EN	0x2
74 #define ADV7180_REG_CTRL		0x000e
75 #define ADV7180_CTRL_IRQ_SPACE		0x20
76 
77 #define ADV7180_REG_PWR_MAN		0x0f
78 #define ADV7180_PWR_MAN_ON		0x04
79 #define ADV7180_PWR_MAN_OFF		0x24
80 #define ADV7180_PWR_MAN_RES		0x80
81 
82 #define ADV7180_REG_STATUS1		0x0010
83 #define ADV7180_STATUS1_IN_LOCK		0x01
84 #define ADV7180_STATUS1_AUTOD_MASK	0x70
85 #define ADV7180_STATUS1_AUTOD_NTSM_M_J	0x00
86 #define ADV7180_STATUS1_AUTOD_NTSC_4_43 0x10
87 #define ADV7180_STATUS1_AUTOD_PAL_M	0x20
88 #define ADV7180_STATUS1_AUTOD_PAL_60	0x30
89 #define ADV7180_STATUS1_AUTOD_PAL_B_G	0x40
90 #define ADV7180_STATUS1_AUTOD_SECAM	0x50
91 #define ADV7180_STATUS1_AUTOD_PAL_COMB	0x60
92 #define ADV7180_STATUS1_AUTOD_SECAM_525	0x70
93 
94 #define ADV7180_REG_IDENT 0x0011
95 #define ADV7180_ID_7180 0x18
96 
97 #define ADV7180_REG_STATUS3		0x0013
98 #define ADV7180_REG_ANALOG_CLAMP_CTL	0x0014
99 #define ADV7180_REG_SHAP_FILTER_CTL_1	0x0017
100 #define ADV7180_REG_CTRL_2		0x001d
101 #define ADV7180_REG_VSYNC_FIELD_CTL_1	0x0031
102 #define ADV7180_VSYNC_FIELD_CTL_1_NEWAV 0x12
103 #define ADV7180_REG_MANUAL_WIN_CTL_1	0x003d
104 #define ADV7180_REG_MANUAL_WIN_CTL_2	0x003e
105 #define ADV7180_REG_MANUAL_WIN_CTL_3	0x003f
106 #define ADV7180_REG_LOCK_CNT		0x0051
107 #define ADV7180_REG_CVBS_TRIM		0x0052
108 #define ADV7180_REG_CLAMP_ADJ		0x005a
109 #define ADV7180_REG_RES_CIR		0x005f
110 #define ADV7180_REG_DIFF_MODE		0x0060
111 
112 #define ADV7180_REG_ICONF1		0x2040
113 #define ADV7180_ICONF1_ACTIVE_LOW	0x01
114 #define ADV7180_ICONF1_PSYNC_ONLY	0x10
115 #define ADV7180_ICONF1_ACTIVE_TO_CLR	0xC0
116 /* Saturation */
117 #define ADV7180_REG_SD_SAT_CB	0x00e3	/*Unsigned */
118 #define ADV7180_REG_SD_SAT_CR	0x00e4	/*Unsigned */
119 #define ADV7180_SAT_MIN		0
120 #define ADV7180_SAT_DEF		128
121 #define ADV7180_SAT_MAX		255
122 
123 #define ADV7180_IRQ1_LOCK	0x01
124 #define ADV7180_IRQ1_UNLOCK	0x02
125 #define ADV7180_REG_ISR1	0x2042
126 #define ADV7180_REG_ICR1	0x2043
127 #define ADV7180_REG_IMR1	0x2044
128 #define ADV7180_REG_IMR2	0x2048
129 #define ADV7180_IRQ3_AD_CHANGE	0x08
130 #define ADV7180_REG_ISR3	0x204A
131 #define ADV7180_REG_ICR3	0x204B
132 #define ADV7180_REG_IMR3	0x204C
133 #define ADV7180_REG_IMR4	0x2050
134 
135 #define ADV7180_REG_NTSC_V_BIT_END	0x00E6
136 #define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND	0x4F
137 
138 #define ADV7180_REG_VPP_SLAVE_ADDR	0xFD
139 #define ADV7180_REG_CSI_SLAVE_ADDR	0xFE
140 
141 #define ADV7180_REG_ACE_CTRL1		0x4080
142 #define ADV7180_REG_ACE_CTRL5		0x4084
143 #define ADV7180_REG_FLCONTROL		0x40e0
144 #define ADV7180_FLCONTROL_FL_ENABLE 0x1
145 
146 #define ADV7180_REG_RST_CLAMP	0x809c
147 #define ADV7180_REG_AGC_ADJ1	0x80b6
148 #define ADV7180_REG_AGC_ADJ2	0x80c0
149 
150 #define ADV7180_CSI_REG_PWRDN	0x00
151 #define ADV7180_CSI_PWRDN	0x80
152 
153 #define ADV7180_INPUT_CVBS_AIN1 0x00
154 #define ADV7180_INPUT_CVBS_AIN2 0x01
155 #define ADV7180_INPUT_CVBS_AIN3 0x02
156 #define ADV7180_INPUT_CVBS_AIN4 0x03
157 #define ADV7180_INPUT_CVBS_AIN5 0x04
158 #define ADV7180_INPUT_CVBS_AIN6 0x05
159 #define ADV7180_INPUT_SVIDEO_AIN1_AIN2 0x06
160 #define ADV7180_INPUT_SVIDEO_AIN3_AIN4 0x07
161 #define ADV7180_INPUT_SVIDEO_AIN5_AIN6 0x08
162 #define ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3 0x09
163 #define ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6 0x0a
164 
165 #define ADV7182_INPUT_CVBS_AIN1 0x00
166 #define ADV7182_INPUT_CVBS_AIN2 0x01
167 #define ADV7182_INPUT_CVBS_AIN3 0x02
168 #define ADV7182_INPUT_CVBS_AIN4 0x03
169 #define ADV7182_INPUT_CVBS_AIN5 0x04
170 #define ADV7182_INPUT_CVBS_AIN6 0x05
171 #define ADV7182_INPUT_CVBS_AIN7 0x06
172 #define ADV7182_INPUT_CVBS_AIN8 0x07
173 #define ADV7182_INPUT_SVIDEO_AIN1_AIN2 0x08
174 #define ADV7182_INPUT_SVIDEO_AIN3_AIN4 0x09
175 #define ADV7182_INPUT_SVIDEO_AIN5_AIN6 0x0a
176 #define ADV7182_INPUT_SVIDEO_AIN7_AIN8 0x0b
177 #define ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3 0x0c
178 #define ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6 0x0d
179 #define ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2 0x0e
180 #define ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4 0x0f
181 #define ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6 0x10
182 #define ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8 0x11
183 
184 #define ADV7180_DEFAULT_CSI_I2C_ADDR 0x44
185 #define ADV7180_DEFAULT_VPP_I2C_ADDR 0x42
186 
187 #define V4L2_CID_ADV_FAST_SWITCH	(V4L2_CID_USER_ADV7180_BASE + 0x00)
188 
189 /* Initial number of frames to skip to avoid possible garbage */
190 #define ADV7180_NUM_OF_SKIP_FRAMES       2
191 
192 struct adv7180_state;
193 
194 #define ADV7180_FLAG_RESET_POWERED	BIT(0)
195 #define ADV7180_FLAG_V2			BIT(1)
196 #define ADV7180_FLAG_MIPI_CSI2		BIT(2)
197 #define ADV7180_FLAG_I2P		BIT(3)
198 
199 struct adv7180_chip_info {
200 	unsigned int flags;
201 	unsigned int valid_input_mask;
202 	int (*set_std)(struct adv7180_state *st, unsigned int std);
203 	int (*select_input)(struct adv7180_state *st, unsigned int input);
204 	int (*init)(struct adv7180_state *state);
205 };
206 
207 struct adv7180_state {
208 	struct v4l2_ctrl_handler ctrl_hdl;
209 	struct v4l2_subdev	sd;
210 	struct media_pad	pad;
211 	struct mutex		mutex; /* mutual excl. when accessing chip */
212 	int			irq;
213 	struct gpio_desc	*pwdn_gpio;
214 	struct gpio_desc	*rst_gpio;
215 	v4l2_std_id		curr_norm;
216 	bool			powered;
217 	bool			streaming;
218 	u8			input;
219 
220 	struct i2c_client	*client;
221 	unsigned int		register_page;
222 	struct i2c_client	*csi_client;
223 	struct i2c_client	*vpp_client;
224 	const struct adv7180_chip_info *chip_info;
225 	enum v4l2_field		field;
226 	bool			force_bt656_4;
227 };
228 #define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler,		\
229 					    struct adv7180_state,	\
230 					    ctrl_hdl)->sd)
231 
adv7180_select_page(struct adv7180_state * state,unsigned int page)232 static int adv7180_select_page(struct adv7180_state *state, unsigned int page)
233 {
234 	if (state->register_page != page) {
235 		i2c_smbus_write_byte_data(state->client, ADV7180_REG_CTRL,
236 			page);
237 		state->register_page = page;
238 	}
239 
240 	return 0;
241 }
242 
adv7180_write(struct adv7180_state * state,unsigned int reg,unsigned int value)243 static int adv7180_write(struct adv7180_state *state, unsigned int reg,
244 	unsigned int value)
245 {
246 	lockdep_assert_held(&state->mutex);
247 	adv7180_select_page(state, reg >> 8);
248 	return i2c_smbus_write_byte_data(state->client, reg & 0xff, value);
249 }
250 
adv7180_read(struct adv7180_state * state,unsigned int reg)251 static int adv7180_read(struct adv7180_state *state, unsigned int reg)
252 {
253 	lockdep_assert_held(&state->mutex);
254 	adv7180_select_page(state, reg >> 8);
255 	return i2c_smbus_read_byte_data(state->client, reg & 0xff);
256 }
257 
adv7180_csi_write(struct adv7180_state * state,unsigned int reg,unsigned int value)258 static int adv7180_csi_write(struct adv7180_state *state, unsigned int reg,
259 	unsigned int value)
260 {
261 	return i2c_smbus_write_byte_data(state->csi_client, reg, value);
262 }
263 
adv7180_set_video_standard(struct adv7180_state * state,unsigned int std)264 static int adv7180_set_video_standard(struct adv7180_state *state,
265 	unsigned int std)
266 {
267 	return state->chip_info->set_std(state, std);
268 }
269 
adv7180_vpp_write(struct adv7180_state * state,unsigned int reg,unsigned int value)270 static int adv7180_vpp_write(struct adv7180_state *state, unsigned int reg,
271 	unsigned int value)
272 {
273 	return i2c_smbus_write_byte_data(state->vpp_client, reg, value);
274 }
275 
adv7180_std_to_v4l2(u8 status1)276 static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
277 {
278 	/* in case V4L2_IN_ST_NO_SIGNAL */
279 	if (!(status1 & ADV7180_STATUS1_IN_LOCK))
280 		return V4L2_STD_UNKNOWN;
281 
282 	switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
283 	case ADV7180_STATUS1_AUTOD_NTSM_M_J:
284 		return V4L2_STD_NTSC;
285 	case ADV7180_STATUS1_AUTOD_NTSC_4_43:
286 		return V4L2_STD_NTSC_443;
287 	case ADV7180_STATUS1_AUTOD_PAL_M:
288 		return V4L2_STD_PAL_M;
289 	case ADV7180_STATUS1_AUTOD_PAL_60:
290 		return V4L2_STD_PAL_60;
291 	case ADV7180_STATUS1_AUTOD_PAL_B_G:
292 		return V4L2_STD_PAL;
293 	case ADV7180_STATUS1_AUTOD_SECAM:
294 		return V4L2_STD_SECAM;
295 	case ADV7180_STATUS1_AUTOD_PAL_COMB:
296 		return V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
297 	case ADV7180_STATUS1_AUTOD_SECAM_525:
298 		return V4L2_STD_SECAM;
299 	default:
300 		return V4L2_STD_UNKNOWN;
301 	}
302 }
303 
v4l2_std_to_adv7180(v4l2_std_id std)304 static int v4l2_std_to_adv7180(v4l2_std_id std)
305 {
306 	if (std == V4L2_STD_PAL_60)
307 		return ADV7180_STD_PAL60;
308 	if (std == V4L2_STD_NTSC_443)
309 		return ADV7180_STD_NTSC_443;
310 	if (std == V4L2_STD_PAL_N)
311 		return ADV7180_STD_PAL_N;
312 	if (std == V4L2_STD_PAL_M)
313 		return ADV7180_STD_PAL_M;
314 	if (std == V4L2_STD_PAL_Nc)
315 		return ADV7180_STD_PAL_COMB_N;
316 
317 	if (std & V4L2_STD_PAL)
318 		return ADV7180_STD_PAL_BG;
319 	if (std & V4L2_STD_NTSC)
320 		return ADV7180_STD_NTSC_M;
321 	if (std & V4L2_STD_SECAM)
322 		return ADV7180_STD_PAL_SECAM;
323 
324 	return -EINVAL;
325 }
326 
adv7180_status_to_v4l2(u8 status1)327 static u32 adv7180_status_to_v4l2(u8 status1)
328 {
329 	if (!(status1 & ADV7180_STATUS1_IN_LOCK))
330 		return V4L2_IN_ST_NO_SIGNAL;
331 
332 	return 0;
333 }
334 
__adv7180_status(struct adv7180_state * state,u32 * status,v4l2_std_id * std)335 static int __adv7180_status(struct adv7180_state *state, u32 *status,
336 			    v4l2_std_id *std)
337 {
338 	int status1 = adv7180_read(state, ADV7180_REG_STATUS1);
339 
340 	if (status1 < 0)
341 		return status1;
342 
343 	if (status)
344 		*status = adv7180_status_to_v4l2(status1);
345 	if (std)
346 		*std = adv7180_std_to_v4l2(status1);
347 
348 	return 0;
349 }
350 
to_state(struct v4l2_subdev * sd)351 static inline struct adv7180_state *to_state(struct v4l2_subdev *sd)
352 {
353 	return container_of(sd, struct adv7180_state, sd);
354 }
355 
adv7180_querystd(struct v4l2_subdev * sd,v4l2_std_id * std)356 static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
357 {
358 	struct adv7180_state *state = to_state(sd);
359 	int err = mutex_lock_interruptible(&state->mutex);
360 	if (err)
361 		return err;
362 
363 	if (state->streaming) {
364 		err = -EBUSY;
365 		goto unlock;
366 	}
367 
368 	err = adv7180_set_video_standard(state,
369 			ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM);
370 	if (err)
371 		goto unlock;
372 
373 	msleep(100);
374 	__adv7180_status(state, NULL, std);
375 
376 	err = v4l2_std_to_adv7180(state->curr_norm);
377 	if (err < 0)
378 		goto unlock;
379 
380 	err = adv7180_set_video_standard(state, err);
381 
382 unlock:
383 	mutex_unlock(&state->mutex);
384 	return err;
385 }
386 
adv7180_s_routing(struct v4l2_subdev * sd,u32 input,u32 output,u32 config)387 static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
388 			     u32 output, u32 config)
389 {
390 	struct adv7180_state *state = to_state(sd);
391 	int ret = mutex_lock_interruptible(&state->mutex);
392 
393 	if (ret)
394 		return ret;
395 
396 	if (input > 31 || !(BIT(input) & state->chip_info->valid_input_mask)) {
397 		ret = -EINVAL;
398 		goto out;
399 	}
400 
401 	ret = state->chip_info->select_input(state, input);
402 
403 	if (ret == 0)
404 		state->input = input;
405 out:
406 	mutex_unlock(&state->mutex);
407 	return ret;
408 }
409 
adv7180_g_input_status(struct v4l2_subdev * sd,u32 * status)410 static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
411 {
412 	struct adv7180_state *state = to_state(sd);
413 	int ret = mutex_lock_interruptible(&state->mutex);
414 	if (ret)
415 		return ret;
416 
417 	ret = __adv7180_status(state, status, NULL);
418 	mutex_unlock(&state->mutex);
419 	return ret;
420 }
421 
adv7180_program_std(struct adv7180_state * state)422 static int adv7180_program_std(struct adv7180_state *state)
423 {
424 	int ret;
425 
426 	ret = v4l2_std_to_adv7180(state->curr_norm);
427 	if (ret < 0)
428 		return ret;
429 
430 	ret = adv7180_set_video_standard(state, ret);
431 	if (ret < 0)
432 		return ret;
433 	return 0;
434 }
435 
adv7180_s_std(struct v4l2_subdev * sd,v4l2_std_id std)436 static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
437 {
438 	struct adv7180_state *state = to_state(sd);
439 	int ret = mutex_lock_interruptible(&state->mutex);
440 
441 	if (ret)
442 		return ret;
443 
444 	/* Make sure we can support this std */
445 	ret = v4l2_std_to_adv7180(std);
446 	if (ret < 0)
447 		goto out;
448 
449 	state->curr_norm = std;
450 
451 	ret = adv7180_program_std(state);
452 out:
453 	mutex_unlock(&state->mutex);
454 	return ret;
455 }
456 
adv7180_g_std(struct v4l2_subdev * sd,v4l2_std_id * norm)457 static int adv7180_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
458 {
459 	struct adv7180_state *state = to_state(sd);
460 
461 	*norm = state->curr_norm;
462 
463 	return 0;
464 }
465 
adv7180_get_frame_interval(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_frame_interval * fi)466 static int adv7180_get_frame_interval(struct v4l2_subdev *sd,
467 				      struct v4l2_subdev_state *sd_state,
468 				      struct v4l2_subdev_frame_interval *fi)
469 {
470 	struct adv7180_state *state = to_state(sd);
471 
472 	/*
473 	 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2
474 	 * subdev active state API.
475 	 */
476 	if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
477 		return -EINVAL;
478 
479 	if (state->curr_norm & V4L2_STD_525_60) {
480 		fi->interval.numerator = 1001;
481 		fi->interval.denominator = 30000;
482 	} else {
483 		fi->interval.numerator = 1;
484 		fi->interval.denominator = 25;
485 	}
486 
487 	return 0;
488 }
489 
adv7180_set_power_pin(struct adv7180_state * state,bool on)490 static void adv7180_set_power_pin(struct adv7180_state *state, bool on)
491 {
492 	if (!state->pwdn_gpio)
493 		return;
494 
495 	if (on) {
496 		gpiod_set_value_cansleep(state->pwdn_gpio, 0);
497 		usleep_range(5000, 10000);
498 	} else {
499 		gpiod_set_value_cansleep(state->pwdn_gpio, 1);
500 	}
501 }
502 
adv7180_set_reset_pin(struct adv7180_state * state,bool on)503 static void adv7180_set_reset_pin(struct adv7180_state *state, bool on)
504 {
505 	if (!state->rst_gpio)
506 		return;
507 
508 	if (on) {
509 		gpiod_set_value_cansleep(state->rst_gpio, 1);
510 	} else {
511 		gpiod_set_value_cansleep(state->rst_gpio, 0);
512 		usleep_range(5000, 10000);
513 	}
514 }
515 
adv7180_set_power(struct adv7180_state * state,bool on)516 static int adv7180_set_power(struct adv7180_state *state, bool on)
517 {
518 	u8 val;
519 	int ret;
520 
521 	if (on)
522 		val = ADV7180_PWR_MAN_ON;
523 	else
524 		val = ADV7180_PWR_MAN_OFF;
525 
526 	ret = adv7180_write(state, ADV7180_REG_PWR_MAN, val);
527 	if (ret)
528 		return ret;
529 
530 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
531 		if (on) {
532 			adv7180_csi_write(state, 0xDE, 0x02);
533 			adv7180_csi_write(state, 0xD2, 0xF7);
534 			adv7180_csi_write(state, 0xD8, 0x65);
535 			adv7180_csi_write(state, 0xE0, 0x09);
536 			adv7180_csi_write(state, 0x2C, 0x00);
537 			if (state->field == V4L2_FIELD_NONE)
538 				adv7180_csi_write(state, 0x1D, 0x80);
539 			adv7180_csi_write(state, 0x00, 0x00);
540 		} else {
541 			adv7180_csi_write(state, 0x00, 0x80);
542 		}
543 	}
544 
545 	return 0;
546 }
547 
adv7180_s_power(struct v4l2_subdev * sd,int on)548 static int adv7180_s_power(struct v4l2_subdev *sd, int on)
549 {
550 	struct adv7180_state *state = to_state(sd);
551 	int ret;
552 
553 	ret = mutex_lock_interruptible(&state->mutex);
554 	if (ret)
555 		return ret;
556 
557 	ret = adv7180_set_power(state, on);
558 	if (ret == 0)
559 		state->powered = on;
560 
561 	mutex_unlock(&state->mutex);
562 	return ret;
563 }
564 
565 static const char * const test_pattern_menu[] = {
566 	"Single color",
567 	"Color bars",
568 	"Luma ramp",
569 	"Boundary box",
570 	"Disable",
571 };
572 
adv7180_test_pattern(struct adv7180_state * state,int value)573 static int adv7180_test_pattern(struct adv7180_state *state, int value)
574 {
575 	unsigned int reg = 0;
576 
577 	/* Map menu value into register value */
578 	if (value < 3)
579 		reg = value;
580 	if (value == 3)
581 		reg = 5;
582 
583 	adv7180_write(state, ADV7180_REG_ANALOG_CLAMP_CTL, reg);
584 
585 	if (value == ARRAY_SIZE(test_pattern_menu) - 1) {
586 		reg = adv7180_read(state, ADV7180_REG_DEF_VALUE_Y);
587 		reg &= ~ADV7180_DEF_VAL_EN;
588 		adv7180_write(state, ADV7180_REG_DEF_VALUE_Y, reg);
589 		return 0;
590 	}
591 
592 	reg = adv7180_read(state, ADV7180_REG_DEF_VALUE_Y);
593 	reg |= ADV7180_DEF_VAL_EN | ADV7180_DEF_VAL_AUTO_EN;
594 	adv7180_write(state, ADV7180_REG_DEF_VALUE_Y, reg);
595 
596 	return 0;
597 }
598 
adv7180_s_ctrl(struct v4l2_ctrl * ctrl)599 static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
600 {
601 	struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
602 	struct adv7180_state *state = to_state(sd);
603 	int ret = mutex_lock_interruptible(&state->mutex);
604 	int val;
605 
606 	if (ret)
607 		return ret;
608 	val = ctrl->val;
609 	switch (ctrl->id) {
610 	case V4L2_CID_BRIGHTNESS:
611 		ret = adv7180_write(state, ADV7180_REG_BRI, val);
612 		break;
613 	case V4L2_CID_HUE:
614 		/*Hue is inverted according to HSL chart */
615 		ret = adv7180_write(state, ADV7180_REG_HUE, -val);
616 		break;
617 	case V4L2_CID_CONTRAST:
618 		ret = adv7180_write(state, ADV7180_REG_CON, val);
619 		break;
620 	case V4L2_CID_SATURATION:
621 		/*
622 		 *This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE
623 		 *Let's not confuse the user, everybody understands saturation
624 		 */
625 		ret = adv7180_write(state, ADV7180_REG_SD_SAT_CB, val);
626 		if (ret < 0)
627 			break;
628 		ret = adv7180_write(state, ADV7180_REG_SD_SAT_CR, val);
629 		break;
630 	case V4L2_CID_ADV_FAST_SWITCH:
631 		if (ctrl->val) {
632 			/* ADI required write */
633 			adv7180_write(state, 0x80d9, 0x44);
634 			adv7180_write(state, ADV7180_REG_FLCONTROL,
635 				ADV7180_FLCONTROL_FL_ENABLE);
636 		} else {
637 			/* ADI required write */
638 			adv7180_write(state, 0x80d9, 0xc4);
639 			adv7180_write(state, ADV7180_REG_FLCONTROL, 0x00);
640 		}
641 		break;
642 	case V4L2_CID_TEST_PATTERN:
643 		ret = adv7180_test_pattern(state, val);
644 		break;
645 	default:
646 		ret = -EINVAL;
647 	}
648 
649 	mutex_unlock(&state->mutex);
650 	return ret;
651 }
652 
653 static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
654 	.s_ctrl = adv7180_s_ctrl,
655 };
656 
657 static const struct v4l2_ctrl_config adv7180_ctrl_fast_switch = {
658 	.ops = &adv7180_ctrl_ops,
659 	.id = V4L2_CID_ADV_FAST_SWITCH,
660 	.name = "Fast Switching",
661 	.type = V4L2_CTRL_TYPE_BOOLEAN,
662 	.min = 0,
663 	.max = 1,
664 	.step = 1,
665 };
666 
adv7180_init_controls(struct adv7180_state * state)667 static int adv7180_init_controls(struct adv7180_state *state)
668 {
669 	v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
670 
671 	v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
672 			  V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
673 			  ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
674 	v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
675 			  V4L2_CID_CONTRAST, ADV7180_CON_MIN,
676 			  ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
677 	v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
678 			  V4L2_CID_SATURATION, ADV7180_SAT_MIN,
679 			  ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
680 	v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
681 			  V4L2_CID_HUE, ADV7180_HUE_MIN,
682 			  ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
683 	v4l2_ctrl_new_custom(&state->ctrl_hdl, &adv7180_ctrl_fast_switch, NULL);
684 
685 	v4l2_ctrl_new_std_menu_items(&state->ctrl_hdl, &adv7180_ctrl_ops,
686 				      V4L2_CID_TEST_PATTERN,
687 				      ARRAY_SIZE(test_pattern_menu) - 1,
688 				      0, ARRAY_SIZE(test_pattern_menu) - 1,
689 				      test_pattern_menu);
690 
691 	state->sd.ctrl_handler = &state->ctrl_hdl;
692 	if (state->ctrl_hdl.error) {
693 		int err = state->ctrl_hdl.error;
694 
695 		v4l2_ctrl_handler_free(&state->ctrl_hdl);
696 		return err;
697 	}
698 	v4l2_ctrl_handler_setup(&state->ctrl_hdl);
699 
700 	return 0;
701 }
adv7180_exit_controls(struct adv7180_state * state)702 static void adv7180_exit_controls(struct adv7180_state *state)
703 {
704 	v4l2_ctrl_handler_free(&state->ctrl_hdl);
705 }
706 
adv7180_enum_mbus_code(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_mbus_code_enum * code)707 static int adv7180_enum_mbus_code(struct v4l2_subdev *sd,
708 				  struct v4l2_subdev_state *sd_state,
709 				  struct v4l2_subdev_mbus_code_enum *code)
710 {
711 	if (code->index != 0)
712 		return -EINVAL;
713 
714 	code->code = MEDIA_BUS_FMT_UYVY8_2X8;
715 
716 	return 0;
717 }
718 
adv7180_mbus_fmt(struct v4l2_subdev * sd,struct v4l2_mbus_framefmt * fmt)719 static int adv7180_mbus_fmt(struct v4l2_subdev *sd,
720 			    struct v4l2_mbus_framefmt *fmt)
721 {
722 	struct adv7180_state *state = to_state(sd);
723 
724 	fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
725 	fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
726 	fmt->width = 720;
727 	fmt->height = state->curr_norm & V4L2_STD_525_60 ? 480 : 576;
728 
729 	if (state->field == V4L2_FIELD_ALTERNATE)
730 		fmt->height /= 2;
731 
732 	return 0;
733 }
734 
adv7180_set_field_mode(struct adv7180_state * state)735 static int adv7180_set_field_mode(struct adv7180_state *state)
736 {
737 	if (!(state->chip_info->flags & ADV7180_FLAG_I2P))
738 		return 0;
739 
740 	if (state->field == V4L2_FIELD_NONE) {
741 		if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
742 			adv7180_csi_write(state, 0x01, 0x20);
743 			adv7180_csi_write(state, 0x02, 0x28);
744 			adv7180_csi_write(state, 0x03, 0x38);
745 			adv7180_csi_write(state, 0x04, 0x30);
746 			adv7180_csi_write(state, 0x05, 0x30);
747 			adv7180_csi_write(state, 0x06, 0x80);
748 			adv7180_csi_write(state, 0x07, 0x70);
749 			adv7180_csi_write(state, 0x08, 0x50);
750 		}
751 		adv7180_vpp_write(state, 0xa3, 0x00);
752 		adv7180_vpp_write(state, 0x5b, 0x00);
753 		adv7180_vpp_write(state, 0x55, 0x80);
754 	} else {
755 		if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
756 			adv7180_csi_write(state, 0x01, 0x18);
757 			adv7180_csi_write(state, 0x02, 0x18);
758 			adv7180_csi_write(state, 0x03, 0x30);
759 			adv7180_csi_write(state, 0x04, 0x20);
760 			adv7180_csi_write(state, 0x05, 0x28);
761 			adv7180_csi_write(state, 0x06, 0x40);
762 			adv7180_csi_write(state, 0x07, 0x58);
763 			adv7180_csi_write(state, 0x08, 0x30);
764 		}
765 		adv7180_vpp_write(state, 0xa3, 0x70);
766 		adv7180_vpp_write(state, 0x5b, 0x80);
767 		adv7180_vpp_write(state, 0x55, 0x00);
768 	}
769 
770 	return 0;
771 }
772 
adv7180_get_pad_format(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_format * format)773 static int adv7180_get_pad_format(struct v4l2_subdev *sd,
774 				  struct v4l2_subdev_state *sd_state,
775 				  struct v4l2_subdev_format *format)
776 {
777 	struct adv7180_state *state = to_state(sd);
778 
779 	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
780 		format->format = *v4l2_subdev_state_get_format(sd_state, 0);
781 	} else {
782 		adv7180_mbus_fmt(sd, &format->format);
783 		format->format.field = state->field;
784 	}
785 
786 	return 0;
787 }
788 
adv7180_set_pad_format(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_format * format)789 static int adv7180_set_pad_format(struct v4l2_subdev *sd,
790 				  struct v4l2_subdev_state *sd_state,
791 				  struct v4l2_subdev_format *format)
792 {
793 	struct adv7180_state *state = to_state(sd);
794 	struct v4l2_mbus_framefmt *framefmt;
795 	int ret;
796 
797 	switch (format->format.field) {
798 	case V4L2_FIELD_NONE:
799 		if (state->chip_info->flags & ADV7180_FLAG_I2P)
800 			break;
801 		fallthrough;
802 	default:
803 		format->format.field = V4L2_FIELD_ALTERNATE;
804 		break;
805 	}
806 
807 	ret = adv7180_mbus_fmt(sd,  &format->format);
808 
809 	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
810 		if (state->field != format->format.field) {
811 			state->field = format->format.field;
812 			adv7180_set_power(state, false);
813 			adv7180_set_field_mode(state);
814 			adv7180_set_power(state, true);
815 		}
816 	} else {
817 		framefmt = v4l2_subdev_state_get_format(sd_state, 0);
818 		*framefmt = format->format;
819 	}
820 
821 	return ret;
822 }
823 
adv7180_init_state(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state)824 static int adv7180_init_state(struct v4l2_subdev *sd,
825 			      struct v4l2_subdev_state *sd_state)
826 {
827 	struct v4l2_subdev_format fmt = {
828 		.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY
829 		: V4L2_SUBDEV_FORMAT_ACTIVE,
830 	};
831 
832 	return adv7180_set_pad_format(sd, sd_state, &fmt);
833 }
834 
adv7180_get_mbus_config(struct v4l2_subdev * sd,unsigned int pad,struct v4l2_mbus_config * cfg)835 static int adv7180_get_mbus_config(struct v4l2_subdev *sd,
836 				   unsigned int pad,
837 				   struct v4l2_mbus_config *cfg)
838 {
839 	struct adv7180_state *state = to_state(sd);
840 
841 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
842 		cfg->type = V4L2_MBUS_CSI2_DPHY;
843 		cfg->bus.mipi_csi2.num_data_lanes = 1;
844 		cfg->bus.mipi_csi2.flags = 0;
845 	} else {
846 		/*
847 		 * The ADV7180 sensor supports BT.601/656 output modes.
848 		 * The BT.656 is default and not yet configurable by s/w.
849 		 */
850 		cfg->bus.parallel.flags = V4L2_MBUS_MASTER |
851 					  V4L2_MBUS_PCLK_SAMPLE_RISING |
852 					  V4L2_MBUS_DATA_ACTIVE_HIGH;
853 		cfg->type = V4L2_MBUS_BT656;
854 	}
855 
856 	return 0;
857 }
858 
adv7180_get_skip_frames(struct v4l2_subdev * sd,u32 * frames)859 static int adv7180_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
860 {
861 	*frames = ADV7180_NUM_OF_SKIP_FRAMES;
862 
863 	return 0;
864 }
865 
adv7180_g_pixelaspect(struct v4l2_subdev * sd,struct v4l2_fract * aspect)866 static int adv7180_g_pixelaspect(struct v4l2_subdev *sd, struct v4l2_fract *aspect)
867 {
868 	struct adv7180_state *state = to_state(sd);
869 
870 	if (state->curr_norm & V4L2_STD_525_60) {
871 		aspect->numerator = 11;
872 		aspect->denominator = 10;
873 	} else {
874 		aspect->numerator = 54;
875 		aspect->denominator = 59;
876 	}
877 
878 	return 0;
879 }
880 
adv7180_g_tvnorms(struct v4l2_subdev * sd,v4l2_std_id * norm)881 static int adv7180_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm)
882 {
883 	*norm = V4L2_STD_ALL;
884 	return 0;
885 }
886 
adv7180_s_stream(struct v4l2_subdev * sd,int enable)887 static int adv7180_s_stream(struct v4l2_subdev *sd, int enable)
888 {
889 	struct adv7180_state *state = to_state(sd);
890 	int ret;
891 
892 	/* It's always safe to stop streaming, no need to take the lock */
893 	if (!enable) {
894 		state->streaming = enable;
895 		return 0;
896 	}
897 
898 	/* Must wait until querystd released the lock */
899 	ret = mutex_lock_interruptible(&state->mutex);
900 	if (ret)
901 		return ret;
902 	state->streaming = enable;
903 	mutex_unlock(&state->mutex);
904 	return 0;
905 }
906 
adv7180_subscribe_event(struct v4l2_subdev * sd,struct v4l2_fh * fh,struct v4l2_event_subscription * sub)907 static int adv7180_subscribe_event(struct v4l2_subdev *sd,
908 				   struct v4l2_fh *fh,
909 				   struct v4l2_event_subscription *sub)
910 {
911 	switch (sub->type) {
912 	case V4L2_EVENT_SOURCE_CHANGE:
913 		return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
914 	case V4L2_EVENT_CTRL:
915 		return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
916 	default:
917 		return -EINVAL;
918 	}
919 }
920 
921 static const struct v4l2_subdev_video_ops adv7180_video_ops = {
922 	.s_std = adv7180_s_std,
923 	.g_std = adv7180_g_std,
924 	.querystd = adv7180_querystd,
925 	.g_input_status = adv7180_g_input_status,
926 	.s_routing = adv7180_s_routing,
927 	.g_pixelaspect = adv7180_g_pixelaspect,
928 	.g_tvnorms = adv7180_g_tvnorms,
929 	.s_stream = adv7180_s_stream,
930 };
931 
932 static const struct v4l2_subdev_core_ops adv7180_core_ops = {
933 	.s_power = adv7180_s_power,
934 	.subscribe_event = adv7180_subscribe_event,
935 	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
936 };
937 
938 static const struct v4l2_subdev_pad_ops adv7180_pad_ops = {
939 	.enum_mbus_code = adv7180_enum_mbus_code,
940 	.set_fmt = adv7180_set_pad_format,
941 	.get_fmt = adv7180_get_pad_format,
942 	.get_frame_interval = adv7180_get_frame_interval,
943 	.get_mbus_config = adv7180_get_mbus_config,
944 };
945 
946 static const struct v4l2_subdev_sensor_ops adv7180_sensor_ops = {
947 	.g_skip_frames = adv7180_get_skip_frames,
948 };
949 
950 static const struct v4l2_subdev_ops adv7180_ops = {
951 	.core = &adv7180_core_ops,
952 	.video = &adv7180_video_ops,
953 	.pad = &adv7180_pad_ops,
954 	.sensor = &adv7180_sensor_ops,
955 };
956 
957 static const struct v4l2_subdev_internal_ops adv7180_internal_ops = {
958 	.init_state = adv7180_init_state,
959 };
960 
adv7180_irq(int irq,void * devid)961 static irqreturn_t adv7180_irq(int irq, void *devid)
962 {
963 	struct adv7180_state *state = devid;
964 	u8 isr3;
965 
966 	mutex_lock(&state->mutex);
967 	isr3 = adv7180_read(state, ADV7180_REG_ISR3);
968 	/* clear */
969 	adv7180_write(state, ADV7180_REG_ICR3, isr3);
970 
971 	if (isr3 & ADV7180_IRQ3_AD_CHANGE) {
972 		static const struct v4l2_event src_ch = {
973 			.type = V4L2_EVENT_SOURCE_CHANGE,
974 			.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
975 		};
976 
977 		v4l2_subdev_notify_event(&state->sd, &src_ch);
978 	}
979 	mutex_unlock(&state->mutex);
980 
981 	return IRQ_HANDLED;
982 }
983 
adv7180_init(struct adv7180_state * state)984 static int adv7180_init(struct adv7180_state *state)
985 {
986 	int ret;
987 
988 	/* ITU-R BT.656-4 compatible */
989 	ret = adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
990 			ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
991 	if (ret < 0)
992 		return ret;
993 
994 	/* Manually set V bit end position in NTSC mode */
995 	return adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END,
996 					ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
997 }
998 
adv7180_set_std(struct adv7180_state * state,unsigned int std)999 static int adv7180_set_std(struct adv7180_state *state, unsigned int std)
1000 {
1001 	return adv7180_write(state, ADV7180_REG_INPUT_CONTROL,
1002 		(std << 4) | state->input);
1003 }
1004 
adv7180_select_input(struct adv7180_state * state,unsigned int input)1005 static int adv7180_select_input(struct adv7180_state *state, unsigned int input)
1006 {
1007 	int ret;
1008 
1009 	ret = adv7180_read(state, ADV7180_REG_INPUT_CONTROL);
1010 	if (ret < 0)
1011 		return ret;
1012 
1013 	ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
1014 	ret |= input;
1015 	return adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ret);
1016 }
1017 
adv7182_init(struct adv7180_state * state)1018 static int adv7182_init(struct adv7180_state *state)
1019 {
1020 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2)
1021 		adv7180_write(state, ADV7180_REG_CSI_SLAVE_ADDR,
1022 			ADV7180_DEFAULT_CSI_I2C_ADDR << 1);
1023 
1024 	if (state->chip_info->flags & ADV7180_FLAG_I2P)
1025 		adv7180_write(state, ADV7180_REG_VPP_SLAVE_ADDR,
1026 			ADV7180_DEFAULT_VPP_I2C_ADDR << 1);
1027 
1028 	if (state->chip_info->flags & ADV7180_FLAG_V2) {
1029 		/* ADI recommended writes for improved video quality */
1030 		adv7180_write(state, 0x0080, 0x51);
1031 		adv7180_write(state, 0x0081, 0x51);
1032 		adv7180_write(state, 0x0082, 0x68);
1033 	}
1034 
1035 	/* ADI required writes */
1036 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
1037 		adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x4e);
1038 		adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, 0x57);
1039 		adv7180_write(state, ADV7180_REG_CTRL_2, 0xc0);
1040 	} else {
1041 		if (state->chip_info->flags & ADV7180_FLAG_V2) {
1042 			if (state->force_bt656_4) {
1043 				/* ITU-R BT.656-4 compatible */
1044 				adv7180_write(state,
1045 					      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
1046 					      ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
1047 				/* Manually set NEWAVMODE */
1048 				adv7180_write(state,
1049 					      ADV7180_REG_VSYNC_FIELD_CTL_1,
1050 					      ADV7180_VSYNC_FIELD_CTL_1_NEWAV);
1051 				/* Manually set V bit end position in NTSC mode */
1052 				adv7180_write(state,
1053 					      ADV7180_REG_NTSC_V_BIT_END,
1054 					      ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
1055 			} else {
1056 				adv7180_write(state,
1057 					      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
1058 					      0x17);
1059 			}
1060 		} else {
1061 			adv7180_write(state,
1062 				      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
1063 				      0x07);
1064 		}
1065 		adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x0c);
1066 		adv7180_write(state, ADV7180_REG_CTRL_2, 0x40);
1067 	}
1068 
1069 	adv7180_write(state, 0x0013, 0x00);
1070 
1071 	return 0;
1072 }
1073 
adv7182_set_std(struct adv7180_state * state,unsigned int std)1074 static int adv7182_set_std(struct adv7180_state *state, unsigned int std)
1075 {
1076 	/* Failing to set the reserved bit can result in increased video noise */
1077 	return adv7180_write(state, ADV7182_REG_INPUT_VIDSEL,
1078 			     (std << 4) | ADV7182_REG_INPUT_RESERVED);
1079 }
1080 
1081 enum adv7182_input_type {
1082 	ADV7182_INPUT_TYPE_CVBS,
1083 	ADV7182_INPUT_TYPE_DIFF_CVBS,
1084 	ADV7182_INPUT_TYPE_SVIDEO,
1085 	ADV7182_INPUT_TYPE_YPBPR,
1086 };
1087 
adv7182_get_input_type(unsigned int input)1088 static enum adv7182_input_type adv7182_get_input_type(unsigned int input)
1089 {
1090 	switch (input) {
1091 	case ADV7182_INPUT_CVBS_AIN1:
1092 	case ADV7182_INPUT_CVBS_AIN2:
1093 	case ADV7182_INPUT_CVBS_AIN3:
1094 	case ADV7182_INPUT_CVBS_AIN4:
1095 	case ADV7182_INPUT_CVBS_AIN5:
1096 	case ADV7182_INPUT_CVBS_AIN6:
1097 	case ADV7182_INPUT_CVBS_AIN7:
1098 	case ADV7182_INPUT_CVBS_AIN8:
1099 		return ADV7182_INPUT_TYPE_CVBS;
1100 	case ADV7182_INPUT_SVIDEO_AIN1_AIN2:
1101 	case ADV7182_INPUT_SVIDEO_AIN3_AIN4:
1102 	case ADV7182_INPUT_SVIDEO_AIN5_AIN6:
1103 	case ADV7182_INPUT_SVIDEO_AIN7_AIN8:
1104 		return ADV7182_INPUT_TYPE_SVIDEO;
1105 	case ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3:
1106 	case ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6:
1107 		return ADV7182_INPUT_TYPE_YPBPR;
1108 	case ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2:
1109 	case ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4:
1110 	case ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6:
1111 	case ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8:
1112 		return ADV7182_INPUT_TYPE_DIFF_CVBS;
1113 	default: /* Will never happen */
1114 		return 0;
1115 	}
1116 }
1117 
1118 /* ADI recommended writes to registers 0x52, 0x53, 0x54 */
1119 static unsigned int adv7182_lbias_settings[][3] = {
1120 	[ADV7182_INPUT_TYPE_CVBS] = { 0xCB, 0x4E, 0x80 },
1121 	[ADV7182_INPUT_TYPE_DIFF_CVBS] = { 0xC0, 0x4E, 0x80 },
1122 	[ADV7182_INPUT_TYPE_SVIDEO] = { 0x0B, 0xCE, 0x80 },
1123 	[ADV7182_INPUT_TYPE_YPBPR] = { 0x0B, 0x4E, 0xC0 },
1124 };
1125 
1126 static unsigned int adv7280_lbias_settings[][3] = {
1127 	[ADV7182_INPUT_TYPE_CVBS] = { 0xCD, 0x4E, 0x80 },
1128 	[ADV7182_INPUT_TYPE_DIFF_CVBS] = { 0xC0, 0x4E, 0x80 },
1129 	[ADV7182_INPUT_TYPE_SVIDEO] = { 0x0B, 0xCE, 0x80 },
1130 	[ADV7182_INPUT_TYPE_YPBPR] = { 0x0B, 0x4E, 0xC0 },
1131 };
1132 
adv7182_select_input(struct adv7180_state * state,unsigned int input)1133 static int adv7182_select_input(struct adv7180_state *state, unsigned int input)
1134 {
1135 	enum adv7182_input_type input_type;
1136 	unsigned int *lbias;
1137 	unsigned int i;
1138 	int ret;
1139 
1140 	ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, input);
1141 	if (ret)
1142 		return ret;
1143 
1144 	/* Reset clamp circuitry - ADI recommended writes */
1145 	adv7180_write(state, ADV7180_REG_RST_CLAMP, 0x00);
1146 	adv7180_write(state, ADV7180_REG_RST_CLAMP, 0xff);
1147 
1148 	input_type = adv7182_get_input_type(input);
1149 
1150 	switch (input_type) {
1151 	case ADV7182_INPUT_TYPE_CVBS:
1152 	case ADV7182_INPUT_TYPE_DIFF_CVBS:
1153 		/* ADI recommends to use the SH1 filter */
1154 		adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x41);
1155 		break;
1156 	default:
1157 		adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x01);
1158 		break;
1159 	}
1160 
1161 	if (state->chip_info->flags & ADV7180_FLAG_V2)
1162 		lbias = adv7280_lbias_settings[input_type];
1163 	else
1164 		lbias = adv7182_lbias_settings[input_type];
1165 
1166 	for (i = 0; i < ARRAY_SIZE(adv7182_lbias_settings[0]); i++)
1167 		adv7180_write(state, ADV7180_REG_CVBS_TRIM + i, lbias[i]);
1168 
1169 	if (input_type == ADV7182_INPUT_TYPE_DIFF_CVBS) {
1170 		/* ADI required writes to make differential CVBS work */
1171 		adv7180_write(state, ADV7180_REG_RES_CIR, 0xa8);
1172 		adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0x90);
1173 		adv7180_write(state, ADV7180_REG_DIFF_MODE, 0xb0);
1174 		adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x08);
1175 		adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0xa0);
1176 	} else {
1177 		adv7180_write(state, ADV7180_REG_RES_CIR, 0xf0);
1178 		adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0xd0);
1179 		adv7180_write(state, ADV7180_REG_DIFF_MODE, 0x10);
1180 		adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x9c);
1181 		adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0x00);
1182 	}
1183 
1184 	return 0;
1185 }
1186 
1187 static const struct adv7180_chip_info adv7180_info = {
1188 	.flags = ADV7180_FLAG_RESET_POWERED,
1189 	/* We cannot discriminate between LQFP and 40-pin LFCSP, so accept
1190 	 * all inputs and let the card driver take care of validation
1191 	 */
1192 	.valid_input_mask = BIT(ADV7180_INPUT_CVBS_AIN1) |
1193 		BIT(ADV7180_INPUT_CVBS_AIN2) |
1194 		BIT(ADV7180_INPUT_CVBS_AIN3) |
1195 		BIT(ADV7180_INPUT_CVBS_AIN4) |
1196 		BIT(ADV7180_INPUT_CVBS_AIN5) |
1197 		BIT(ADV7180_INPUT_CVBS_AIN6) |
1198 		BIT(ADV7180_INPUT_SVIDEO_AIN1_AIN2) |
1199 		BIT(ADV7180_INPUT_SVIDEO_AIN3_AIN4) |
1200 		BIT(ADV7180_INPUT_SVIDEO_AIN5_AIN6) |
1201 		BIT(ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1202 		BIT(ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6),
1203 	.init = adv7180_init,
1204 	.set_std = adv7180_set_std,
1205 	.select_input = adv7180_select_input,
1206 };
1207 
1208 static const struct adv7180_chip_info adv7182_info = {
1209 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1210 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1211 		BIT(ADV7182_INPUT_CVBS_AIN3) |
1212 		BIT(ADV7182_INPUT_CVBS_AIN4) |
1213 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1214 		BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1215 		BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1216 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1217 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4),
1218 	.init = adv7182_init,
1219 	.set_std = adv7182_set_std,
1220 	.select_input = adv7182_select_input,
1221 };
1222 
1223 static const struct adv7180_chip_info adv7280_info = {
1224 	.flags = ADV7180_FLAG_V2 | ADV7180_FLAG_I2P,
1225 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1226 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1227 		BIT(ADV7182_INPUT_CVBS_AIN3) |
1228 		BIT(ADV7182_INPUT_CVBS_AIN4) |
1229 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1230 		BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1231 		BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3),
1232 	.init = adv7182_init,
1233 	.set_std = adv7182_set_std,
1234 	.select_input = adv7182_select_input,
1235 };
1236 
1237 static const struct adv7180_chip_info adv7280_m_info = {
1238 	.flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2 | ADV7180_FLAG_I2P,
1239 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1240 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1241 		BIT(ADV7182_INPUT_CVBS_AIN3) |
1242 		BIT(ADV7182_INPUT_CVBS_AIN4) |
1243 		BIT(ADV7182_INPUT_CVBS_AIN5) |
1244 		BIT(ADV7182_INPUT_CVBS_AIN6) |
1245 		BIT(ADV7182_INPUT_CVBS_AIN7) |
1246 		BIT(ADV7182_INPUT_CVBS_AIN8) |
1247 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1248 		BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1249 		BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) |
1250 		BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1251 		BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1252 		BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6),
1253 	.init = adv7182_init,
1254 	.set_std = adv7182_set_std,
1255 	.select_input = adv7182_select_input,
1256 };
1257 
1258 static const struct adv7180_chip_info adv7281_info = {
1259 	.flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1260 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1261 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1262 		BIT(ADV7182_INPUT_CVBS_AIN7) |
1263 		BIT(ADV7182_INPUT_CVBS_AIN8) |
1264 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1265 		BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1266 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1267 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1268 	.init = adv7182_init,
1269 	.set_std = adv7182_set_std,
1270 	.select_input = adv7182_select_input,
1271 };
1272 
1273 static const struct adv7180_chip_info adv7281_m_info = {
1274 	.flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1275 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1276 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1277 		BIT(ADV7182_INPUT_CVBS_AIN3) |
1278 		BIT(ADV7182_INPUT_CVBS_AIN4) |
1279 		BIT(ADV7182_INPUT_CVBS_AIN7) |
1280 		BIT(ADV7182_INPUT_CVBS_AIN8) |
1281 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1282 		BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1283 		BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1284 		BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1285 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1286 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1287 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1288 	.init = adv7182_init,
1289 	.set_std = adv7182_set_std,
1290 	.select_input = adv7182_select_input,
1291 };
1292 
1293 static const struct adv7180_chip_info adv7281_ma_info = {
1294 	.flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1295 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1296 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1297 		BIT(ADV7182_INPUT_CVBS_AIN3) |
1298 		BIT(ADV7182_INPUT_CVBS_AIN4) |
1299 		BIT(ADV7182_INPUT_CVBS_AIN5) |
1300 		BIT(ADV7182_INPUT_CVBS_AIN6) |
1301 		BIT(ADV7182_INPUT_CVBS_AIN7) |
1302 		BIT(ADV7182_INPUT_CVBS_AIN8) |
1303 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1304 		BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1305 		BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) |
1306 		BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1307 		BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1308 		BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6) |
1309 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1310 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1311 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6) |
1312 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1313 	.init = adv7182_init,
1314 	.set_std = adv7182_set_std,
1315 	.select_input = adv7182_select_input,
1316 };
1317 
1318 static const struct adv7180_chip_info adv7282_info = {
1319 	.flags = ADV7180_FLAG_V2 | ADV7180_FLAG_I2P,
1320 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1321 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1322 		BIT(ADV7182_INPUT_CVBS_AIN7) |
1323 		BIT(ADV7182_INPUT_CVBS_AIN8) |
1324 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1325 		BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1326 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1327 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1328 	.init = adv7182_init,
1329 	.set_std = adv7182_set_std,
1330 	.select_input = adv7182_select_input,
1331 };
1332 
1333 static const struct adv7180_chip_info adv7282_m_info = {
1334 	.flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2 | ADV7180_FLAG_I2P,
1335 	.valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1336 		BIT(ADV7182_INPUT_CVBS_AIN2) |
1337 		BIT(ADV7182_INPUT_CVBS_AIN3) |
1338 		BIT(ADV7182_INPUT_CVBS_AIN4) |
1339 		BIT(ADV7182_INPUT_CVBS_AIN7) |
1340 		BIT(ADV7182_INPUT_CVBS_AIN8) |
1341 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1342 		BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1343 		BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1344 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1345 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1346 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1347 	.init = adv7182_init,
1348 	.set_std = adv7182_set_std,
1349 	.select_input = adv7182_select_input,
1350 };
1351 
init_device(struct adv7180_state * state)1352 static int init_device(struct adv7180_state *state)
1353 {
1354 	int ret;
1355 
1356 	mutex_lock(&state->mutex);
1357 
1358 	adv7180_set_power_pin(state, true);
1359 	adv7180_set_reset_pin(state, false);
1360 
1361 	adv7180_write(state, ADV7180_REG_PWR_MAN, ADV7180_PWR_MAN_RES);
1362 	usleep_range(5000, 10000);
1363 
1364 	ret = state->chip_info->init(state);
1365 	if (ret)
1366 		goto out_unlock;
1367 
1368 	ret = adv7180_program_std(state);
1369 	if (ret)
1370 		goto out_unlock;
1371 
1372 	adv7180_set_field_mode(state);
1373 
1374 	/* register for interrupts */
1375 	if (state->irq > 0) {
1376 		/* config the Interrupt pin to be active low */
1377 		ret = adv7180_write(state, ADV7180_REG_ICONF1,
1378 						ADV7180_ICONF1_ACTIVE_LOW |
1379 						ADV7180_ICONF1_PSYNC_ONLY);
1380 		if (ret < 0)
1381 			goto out_unlock;
1382 
1383 		ret = adv7180_write(state, ADV7180_REG_IMR1, 0);
1384 		if (ret < 0)
1385 			goto out_unlock;
1386 
1387 		ret = adv7180_write(state, ADV7180_REG_IMR2, 0);
1388 		if (ret < 0)
1389 			goto out_unlock;
1390 
1391 		/* enable AD change interrupts interrupts */
1392 		ret = adv7180_write(state, ADV7180_REG_IMR3,
1393 						ADV7180_IRQ3_AD_CHANGE);
1394 		if (ret < 0)
1395 			goto out_unlock;
1396 
1397 		ret = adv7180_write(state, ADV7180_REG_IMR4, 0);
1398 		if (ret < 0)
1399 			goto out_unlock;
1400 	}
1401 
1402 out_unlock:
1403 	mutex_unlock(&state->mutex);
1404 
1405 	return ret;
1406 }
1407 
adv7180_probe(struct i2c_client * client)1408 static int adv7180_probe(struct i2c_client *client)
1409 {
1410 	struct device_node *np = client->dev.of_node;
1411 	struct adv7180_state *state;
1412 	struct v4l2_subdev *sd;
1413 	int ret;
1414 
1415 	/* Check if the adapter supports the needed features */
1416 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1417 		return -EIO;
1418 
1419 	state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
1420 	if (state == NULL)
1421 		return -ENOMEM;
1422 
1423 	state->client = client;
1424 	state->field = V4L2_FIELD_ALTERNATE;
1425 	state->chip_info = i2c_get_match_data(client);
1426 
1427 	state->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown",
1428 						   GPIOD_OUT_HIGH);
1429 	if (IS_ERR(state->pwdn_gpio)) {
1430 		ret = PTR_ERR(state->pwdn_gpio);
1431 		v4l_err(client, "request for power pin failed: %d\n", ret);
1432 		return ret;
1433 	}
1434 
1435 	state->rst_gpio = devm_gpiod_get_optional(&client->dev, "reset",
1436 						  GPIOD_OUT_HIGH);
1437 	if (IS_ERR(state->rst_gpio)) {
1438 		ret = PTR_ERR(state->rst_gpio);
1439 		v4l_err(client, "request for reset pin failed: %d\n", ret);
1440 		return ret;
1441 	}
1442 
1443 	if (of_property_read_bool(np, "adv,force-bt656-4"))
1444 		state->force_bt656_4 = true;
1445 
1446 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
1447 		state->csi_client = i2c_new_dummy_device(client->adapter,
1448 				ADV7180_DEFAULT_CSI_I2C_ADDR);
1449 		if (IS_ERR(state->csi_client))
1450 			return PTR_ERR(state->csi_client);
1451 	}
1452 
1453 	if (state->chip_info->flags & ADV7180_FLAG_I2P) {
1454 		state->vpp_client = i2c_new_dummy_device(client->adapter,
1455 				ADV7180_DEFAULT_VPP_I2C_ADDR);
1456 		if (IS_ERR(state->vpp_client)) {
1457 			ret = PTR_ERR(state->vpp_client);
1458 			goto err_unregister_csi_client;
1459 		}
1460 	}
1461 
1462 	state->irq = client->irq;
1463 	mutex_init(&state->mutex);
1464 	state->curr_norm = V4L2_STD_NTSC;
1465 	if (state->chip_info->flags & ADV7180_FLAG_RESET_POWERED)
1466 		state->powered = true;
1467 	else
1468 		state->powered = false;
1469 	state->input = 0;
1470 	sd = &state->sd;
1471 	v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
1472 	sd->internal_ops = &adv7180_internal_ops;
1473 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
1474 
1475 	ret = adv7180_init_controls(state);
1476 	if (ret)
1477 		goto err_unregister_vpp_client;
1478 
1479 	state->pad.flags = MEDIA_PAD_FL_SOURCE;
1480 	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1481 	ret = media_entity_pads_init(&sd->entity, 1, &state->pad);
1482 	if (ret)
1483 		goto err_free_ctrl;
1484 
1485 	ret = init_device(state);
1486 	if (ret)
1487 		goto err_media_entity_cleanup;
1488 
1489 	if (state->irq > 0) {
1490 		ret = request_threaded_irq(client->irq, NULL, adv7180_irq,
1491 					   IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
1492 					   KBUILD_MODNAME, state);
1493 		if (ret)
1494 			goto err_media_entity_cleanup;
1495 	}
1496 
1497 	ret = v4l2_async_register_subdev(sd);
1498 	if (ret)
1499 		goto err_free_irq;
1500 
1501 	mutex_lock(&state->mutex);
1502 	ret = adv7180_read(state, ADV7180_REG_IDENT);
1503 	mutex_unlock(&state->mutex);
1504 	if (ret < 0)
1505 		goto err_v4l2_async_unregister;
1506 
1507 	v4l_info(client, "chip id 0x%x found @ 0x%02x (%s)\n",
1508 		 ret, client->addr, client->adapter->name);
1509 
1510 	return 0;
1511 
1512 err_v4l2_async_unregister:
1513 	v4l2_async_unregister_subdev(sd);
1514 err_free_irq:
1515 	if (state->irq > 0)
1516 		free_irq(client->irq, state);
1517 err_media_entity_cleanup:
1518 	media_entity_cleanup(&sd->entity);
1519 err_free_ctrl:
1520 	adv7180_exit_controls(state);
1521 err_unregister_vpp_client:
1522 	i2c_unregister_device(state->vpp_client);
1523 err_unregister_csi_client:
1524 	i2c_unregister_device(state->csi_client);
1525 	mutex_destroy(&state->mutex);
1526 	return ret;
1527 }
1528 
adv7180_remove(struct i2c_client * client)1529 static void adv7180_remove(struct i2c_client *client)
1530 {
1531 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
1532 	struct adv7180_state *state = to_state(sd);
1533 
1534 	v4l2_async_unregister_subdev(sd);
1535 
1536 	if (state->irq > 0)
1537 		free_irq(client->irq, state);
1538 
1539 	media_entity_cleanup(&sd->entity);
1540 	adv7180_exit_controls(state);
1541 
1542 	i2c_unregister_device(state->vpp_client);
1543 	i2c_unregister_device(state->csi_client);
1544 
1545 	adv7180_set_reset_pin(state, true);
1546 	adv7180_set_power_pin(state, false);
1547 
1548 	mutex_destroy(&state->mutex);
1549 }
1550 
1551 #ifdef CONFIG_PM_SLEEP
adv7180_suspend(struct device * dev)1552 static int adv7180_suspend(struct device *dev)
1553 {
1554 	struct v4l2_subdev *sd = dev_get_drvdata(dev);
1555 	struct adv7180_state *state = to_state(sd);
1556 
1557 	return adv7180_set_power(state, false);
1558 }
1559 
adv7180_resume(struct device * dev)1560 static int adv7180_resume(struct device *dev)
1561 {
1562 	struct v4l2_subdev *sd = dev_get_drvdata(dev);
1563 	struct adv7180_state *state = to_state(sd);
1564 	int ret;
1565 
1566 	ret = init_device(state);
1567 	if (ret < 0)
1568 		return ret;
1569 
1570 	ret = adv7180_set_power(state, state->powered);
1571 	if (ret)
1572 		return ret;
1573 
1574 	return 0;
1575 }
1576 
1577 static SIMPLE_DEV_PM_OPS(adv7180_pm_ops, adv7180_suspend, adv7180_resume);
1578 #define ADV7180_PM_OPS (&adv7180_pm_ops)
1579 
1580 #else
1581 #define ADV7180_PM_OPS NULL
1582 #endif
1583 
1584 static const struct i2c_device_id adv7180_id[] = {
1585 	{ "adv7180", (kernel_ulong_t)&adv7180_info },
1586 	{ "adv7180cp", (kernel_ulong_t)&adv7180_info },
1587 	{ "adv7180st", (kernel_ulong_t)&adv7180_info },
1588 	{ "adv7182", (kernel_ulong_t)&adv7182_info },
1589 	{ "adv7280", (kernel_ulong_t)&adv7280_info },
1590 	{ "adv7280-m", (kernel_ulong_t)&adv7280_m_info },
1591 	{ "adv7281", (kernel_ulong_t)&adv7281_info },
1592 	{ "adv7281-m", (kernel_ulong_t)&adv7281_m_info },
1593 	{ "adv7281-ma", (kernel_ulong_t)&adv7281_ma_info },
1594 	{ "adv7282", (kernel_ulong_t)&adv7282_info },
1595 	{ "adv7282-m", (kernel_ulong_t)&adv7282_m_info },
1596 	{}
1597 };
1598 MODULE_DEVICE_TABLE(i2c, adv7180_id);
1599 
1600 static const struct of_device_id adv7180_of_id[] = {
1601 	{ .compatible = "adi,adv7180", &adv7180_info },
1602 	{ .compatible = "adi,adv7180cp", &adv7180_info },
1603 	{ .compatible = "adi,adv7180st", &adv7180_info },
1604 	{ .compatible = "adi,adv7182", &adv7182_info },
1605 	{ .compatible = "adi,adv7280", &adv7280_info },
1606 	{ .compatible = "adi,adv7280-m", &adv7280_m_info },
1607 	{ .compatible = "adi,adv7281", &adv7281_info },
1608 	{ .compatible = "adi,adv7281-m", &adv7281_m_info },
1609 	{ .compatible = "adi,adv7281-ma", &adv7281_ma_info },
1610 	{ .compatible = "adi,adv7282", &adv7282_info },
1611 	{ .compatible = "adi,adv7282-m", &adv7282_m_info },
1612 	{}
1613 };
1614 MODULE_DEVICE_TABLE(of, adv7180_of_id);
1615 
1616 static struct i2c_driver adv7180_driver = {
1617 	.driver = {
1618 		   .name = KBUILD_MODNAME,
1619 		   .pm = ADV7180_PM_OPS,
1620 		   .of_match_table = adv7180_of_id,
1621 		   },
1622 	.probe = adv7180_probe,
1623 	.remove = adv7180_remove,
1624 	.id_table = adv7180_id,
1625 };
1626 
1627 module_i2c_driver(adv7180_driver);
1628 
1629 MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
1630 MODULE_AUTHOR("Mocean Laboratories");
1631 MODULE_LICENSE("GPL v2");
1632